text: The complex adopts the usual "clam-shell" structure seen for other CpMX complexes. The dimetallic structure has been confirmed by Microcrystal electron diffraction.  The results are consistent with FT-IR spectroscopy, which established that the hydrides are bridging. Solid state NMR spectroscopy also indicates a dimeric structure.  The X-ray crystallographic structure for the methyl compound (CH)ZrH(CH) compound is analogous.